I know, right. I mean, how do satellites stay in orbit above the Earth?
The strongest argument for Dr. Brown's theory is what Stripe is covering now which is that the Canopy Theory doesn't hold water.
The instant I read Dr. Brown's theory it clicked in my head and sounded so much more logical and believable. The entire canopy theory always sounded so contrived and unbelievable. Dr. Brown's theory is realistic, believable and understandable.
I'm not so sure there wasn't a canopy also. It does solve a few problems of the antediluvian world. And there may have been enough energy to send the fountains of the deep high enough to break it.
Just like the crust, the canopy would have been fragile, with one crack bringing the whole thing down.
Alternatively, the canopy might have gone first because a meteor is what initiated the crack in the crust of the earth. But I don't think it would have mattered much.